the sport of jumping from a high building, bridge, etc. with a parachute
base jumping
the activity of going down a very steep slope while holding on to a rope that is fastened to the top of the slope
abseiling
a sport in which you sail across water by standing on a board and holding onto a large sail
windsurfing
the activity or sport of moving over snow using a snowboard
snowboarding
the sport of climbing on rocks or in mountains that are covered in ice
ice climbing
the activity or sport of riding a skateboard
skateboarding
a sport in which you run in elevated buildings
tower running
the activity or sport of swimming as deep as you can under water without using breathing equipment
free diving
the activity of flying through the air by hanging from a very small aircraft without an engine, consisting of a frame covered in cloth
hang-gliding
a sport in which a person jumps from an aircraft and falls for as long as possible before opening a parachute
skydiving
the sport of climbing on rocks or in mountains
rock climbing
the activity of travelling in a small boat on water
kayaking
an activity in which people move quickly around buildings and objects in a city while performing jumps and other skilful movements
free running
the sport of jumping off a very high bridge or similar structure, with a long elastic rope tied to your legs, so that the rope pulls you back before you hit the ground
bungee jumping
the sport or activity of riding a mountain bike
mountain biking
the sport of riding on a wave on a special board
body surfing